The Observatory is located on the roof of Thornton Hall, on the San Francisco State campus. To get to the Observatory, take the elevators to the 9th floor, find the stairwell, and walk 3 half-flights to the top. The Observatory is on the 10th floor, Room 1002.

Thornton Hall is on the east side of the SFSU campus, off of 19th Avenue, in the Lake Merced region of San Francisco.

Here is some information about how to get to SFSU: parking and transportation.